

Я постоянно ударяюсь головой об эту полку.
I keep hitting my head on this shelf.
Старайся не ударяться головой о дверь машины.
Try not to hit your head on the car door.
Дети часто ударяются, когда учатся ходить.
Children often bump themselves when they're learning to walk.
"ударяться" is in the lesson "Verbs 15" (Level 27), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.